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  <title>Sets the client information</title>
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  <div id="layout-content"><div id="function.oci-set-client-info" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">oci_set_client_info</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.3.2, PHP 7, PECL OCI8 &gt;= 1.4.0)</p><p class="refpurpose"><span class="refname">oci_set_client_info</span> &mdash; <span class="dc-title">Sets the client information</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.oci-set-client-info-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>oci_set_client_info</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$connection</code></span>
   , <span class="methodparam"><span class="type">string</span> <code class="parameter">$client_info</code></span>
   ) : <span class="type">bool</span></div>

  <p class="para rdfs-comment">
   Sets the client information for Oracle tracing.
  </p>
  <p class="para">
   The client information is registered with the database when the next
   &#039;round-trip&#039; from PHP to the database occurs, typically when an SQL
   statement is executed.
  </p>
  <p class="para">
   The client information can subsequently be queried from database 
   administration views such as <em>V$SESSION</em>.
  </p>
  <p class="para">
   The value may be retained across persistent connections.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.oci-set-client-info-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<code class="parameter">connection</code></dt>

     <dd>

      <p class="para">Oracle 连接标识，由
<span class="function"><a href="oci_connect.html" class="function">oci_connect()</a></span>，<span class="function"><a href="oci_pconnect.html" class="function">oci_pconnect()</a></span>，或
<span class="function"><a href="oci_new_connect.html" class="function">oci_new_connect()</a></span> 返回。</p>
     </dd>

    
    
     <dt>
<code class="parameter">client_info</code></dt>

     <dd>

      <p class="para">
       User chosen string up to 64 bytes long.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.oci-set-client-info-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.oci-set-client-info-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-2457">
    <p><strong>Example #1 Setting the client information</strong></p>
    <div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br />$c&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">oci_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'hr'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'welcome'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'localhost/XE'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;Record&nbsp;the&nbsp;client&nbsp;information<br /></span><span style="color: #0000BB">oci_set_client_info</span><span style="color: #007700">(</span><span style="color: #0000BB">$c</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'My&nbsp;Application&nbsp;Version&nbsp;2'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;Code&nbsp;that&nbsp;causes&nbsp;a&nbsp;round-trip,&nbsp;for&nbsp;example&nbsp;a&nbsp;query:<br /></span><span style="color: #0000BB">$s&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">oci_parse</span><span style="color: #007700">(</span><span style="color: #0000BB">$c</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'select&nbsp;*&nbsp;from&nbsp;dual'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">oci_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$s</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">oci_fetch_all</span><span style="color: #007700">(</span><span style="color: #0000BB">$s</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$res</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">sleep</span><span style="color: #007700">(</span><span style="color: #0000BB">30</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
    </div>

    <div class="example-contents screen">
<div class="cdata"><pre>
// While the script is running, the administrator can see the client
// information:

sqlplus system/welcome
SQL&gt; select client_info from v$session;
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 notes" id="refsect1-function.oci-set-client-info-notes">
  <h3 class="title">注释</h3>
  <blockquote class="note"><p><strong class="note">Note</strong>: <strong>Oracle 版本需求</strong><br />
<p class="para">当 PHP 是与 Oracle 数据库 10g 及更新版本的 扩展库链接时，此函数可用。</p></p></blockquote>
  <div class="tip"><strong class="tip">Tip</strong><h1 class="title">性能</h1>
 <p class="para">使用旧版的 OCI8 或 ORACLE 数据库 ，可使用
 Oracle <em>DBMS_APPLICATION_INFO</em> 包来设置客户端信息。这比使用
 <span class="function"><strong>oci_set_client_info()</strong></span> 较低效。</p></div>
  <div class="caution"><strong class="caution">Caution</strong><h1 class="title">Roundtrip Gotcha</h1>
<p class="para">一些 OCI8 函数会导致 Roundtrips. 对数据库来说当启用结果缓存时，查询可能不产生Roundtrips。</p></div>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.oci-set-client-info-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="oci_set_module_name.html" class="function" rel="rdfs-seeAlso">oci_set_module_name()</a> - Sets the module name</span></li>
    <li class="member"><span class="function"><a href="oci_set_action.html" class="function" rel="rdfs-seeAlso">oci_set_action()</a> - Sets the action name</span></li>
    <li class="member"><span class="function"><a href="oci_set_client_identifier.html" class="function" rel="rdfs-seeAlso">oci_set_client_identifier()</a> - Sets the client identifier</span></li>
    <li class="member"><span class="function"><a href="oci_set_db_operation.html" class="function" rel="rdfs-seeAlso">oci_set_db_operation()</a> - Sets the database operation</span></li>
   </ul>
  </p>
 </div>


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